EP2752125B1 - Shoes of automated process production and shoemaking method thereof - Google Patents

Shoes of automated process production and shoemaking method thereof Download PDF

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Publication number
EP2752125B1
EP2752125B1 EP13169628.8A EP13169628A EP2752125B1 EP 2752125 B1 EP2752125 B1 EP 2752125B1 EP 13169628 A EP13169628 A EP 13169628A EP 2752125 B1 EP2752125 B1 EP 2752125B1
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EP
European Patent Office
Prior art keywords
shoe
footrest
underside
plastic material
sole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP13169628.8A
Other languages
German (de)
French (fr)
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EP2752125A1 (en
Inventor
Wen-Tsao WEN
Teng Jen Yang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JEN YUAN PLASTICS CO Ltd
Long John Tsung Right Industrial Co Ltd
Original Assignee
JEN YUAN PLASTICS CO Ltd
Long John Tsung Right Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Publication of EP2752125A1 publication Critical patent/EP2752125A1/en
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Publication of EP2752125B1 publication Critical patent/EP2752125B1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D25/00—Devices for gluing shoe parts
    • A43D25/18—Devices for applying adhesives to shoe parts
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • A43B23/0205—Uppers; Boot legs characterised by the material
    • A43B23/021—Leather
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • A43B23/0245—Uppers; Boot legs characterised by the constructive form
    • A43B23/0265—Uppers; Boot legs characterised by the constructive form having different properties in different directions
    • A43B23/027—Uppers; Boot legs characterised by the constructive form having different properties in different directions with a part of the upper particularly flexible, e.g. permitting articulation or torsion
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D25/00—Devices for gluing shoe parts
    • A43D25/06—Devices for gluing soles on shoe bottoms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/06—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising
    • B29D35/061—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising by injection moulding
    • B29D35/062—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising by injection moulding using means to bond the moulding material to the preformed uppers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/06—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising
    • B29D35/061—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising by injection moulding
    • B29D35/064—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising by injection moulding using particular materials for the preformed uppers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/06—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising
    • B29D35/08—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising having multilayered parts
    • B29D35/081—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising having multilayered parts by injection moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/10—Producing footwear having preformed soles or heels joined on to preformed uppers using a moulding technique, e.g. by feeding or injecting plastics material between the parts to be joined

Definitions

  • the present invention relates to shoes of an automated process production and a shoemaking method thereof, and more particularly to the shoes of an automated process production and the shoemaking method thereof in which coating a plastic material on a shoe-upper material and gluing a shoe sole to a footrest underside may be performed simultaneously.
  • a glue or adhesive In the conventional shoemaking procedure, a glue or adhesive must be applied onto a shoe-upper material and a sole must before attaching them with one another, and a surface treatment of the sole is performed, so that the glue or adhesive can be coupled to the sole securely.
  • the use of the glue or adhesive and the surface treatment of the sole may cause environmental pollutions, and the gluing process generally relies on manpower for the alignment, and any poorly glued shoe-upper material and sole cannot be reworked or glued again, and thus causing a problem for controlling the yield rate.
  • the labor cost of the manufacturing industry becomes increasingly higher, and the technical skill of the workers becomes increasingly lower. Therefore, the material, labor and manufacturing costs required in a production process become a big burden to the shoe industry.
  • US 2012/0255201 A1 discloses footwear with a seamless upper and methods for making the same. There, a sole is created by injecting resin between a mold and a lower side of the shoe upper.
  • US 6,007,748 A discloses methods and apparatus particularly for molding laminated shoe soles directly onto the remainder of the shoe, by injecting polymeric material between a sole mold and a lower part of the shoe upper.
  • US 2010/0154256 A1 reveals an article of footwear where the shoe upper is a unitary knit construction formed through a single flat knitting process.
  • EP 0 787 577 A1 discloses a method for producing shoe soles by injection-molding by injecting thermoplastic materials around a lower part of the shoe upper.
  • US 2004/0143995 A1 shows a shoe construction where a shoe sole is attached to the shoe upper by injecting a plastic material between a lower part of the shoe upper and a rubber outsole.
  • US 2007/0180730 A1 discloses articles of footwear with a sole structure and an upper having lateral and medial side elements that are engaged and mechanically or bondedly joined with the sole structure.
  • US 2011/0247236 A1 discloses footwear and method for manufacturing the same where polymeric material is injected or poured between an outsole and a midsole part of the shoe upper.
  • patent 3,812,604 reveals a shoe upper which is joined to an outsole by injecting a liquid synthetic hardenable material between a lower part of the shoe upper and the outsole.
  • US 2009/0071035 A1 discloses a footwear item with an upper and an outsole where the outsole is connected to the upper by injecting plastic material between the outsole and the lower part of the shoe upper.
  • the present invention provides a shoe of an automated process production, comprising a shoe-upper material having an upper side and a lower side relative to the upper side, a shoe sole and a plastic material.
  • the shoe-upper material is a one-piece three-dimensional structure and includes a shoe-upper and a footrest underside, and the shoe-upper is coupled to the footrest underside along an edge of the footrest underside.
  • the shoe sole is installed at the footrest underside.
  • the plastic material is coated onto the upper side and the lower side of the shoe-upper and onto the footrest underside and filled between footrest underside and the shoe sole, and the shoe sole is glued to the footrest underside by the plastic material, and the plastic material forms at least one three-dimensional structured support member attached onto the upper side and the lower side of the shoe-upper and onto the footrest underside to provide a supporting force to the whole shoe-upper material (11).
  • the shoe-upper material has a plurality of pores.
  • the plastic material is permeated into the plurality of pores of the shoe-upper material, when the plastic material is coated onto the shoe-upper and the footrest underside of the shoe-upper material.
  • the shoe-upper material is a braid.
  • the shoe-upper material is leather.
  • the present invention further provides a shoemaking method of an automated process production, comprising the steps of: providing a one-piece three-dimensional structured shoe-upper material, and the shoe-upper material including a shoe-upper having an upper side and a lower side relative to the upper side and a footrest underside, and the lower side of shoe-upper being coupled to an edge of the footrest underside along the footrest underside; providing a shoe sole, installed at the footrest underside; coating a plastic material onto the shoe-upper and the footrest underside and filling the plastic material between the footrest underside and the shoe sole by a gluing step to glue the shoe sole to the footrest underside; and forming at least one three-dimensional structured support member attached to the upper side and the lower side of the shoe-upper and the footrest underside by the plastic material to provide a supporting force to the whole shoe-upper material.
  • the gluing step further comprises the steps of: setting the shoe-upper material onto a shoe shaped inner mold; putting the shoe-upper material and the shoe sole into a shaping mold body having at least one preset mold cavity, and pressing the shoe-upper material by the shaping mold body; injecting the plastic material into the at least one preset mold cavity of the shaping mold body by a plastic injection molding machine, such that the plastic material is coated onto the upper side and a lower side of the shoe-upper and the footrest underside and filled between the footrest underside and the shoe sole; and removing the shoe shaped inner mold and the shaping mold body 3 by a demolding step.
  • the shoemaking method further comprises the following steps before the demolding step takes place: permeating the plastic material into a plurality of pores of the shoe-upper material, such that the plastic material is coupled to the shoe-upper material; and waiting till the plastic material is cured and shaped, such that the plastic material forms an intermediate glue layer between the footrest underside and the shoe sole to glue the shoe sole to the footrest underside.
  • the shoe shaped inner mold is a movably stretchable shoe last.
  • the shaping mold body includes at least three shaping mold blocks having the at least one preset mold cavity.
  • the shoes of an automated process production and a shoemaking method thereof in accordance with the present invention use a plastic injection molding machine to inject the plastic material into the mold and coat the plastic material onto the shoe-upper material and fill the plastic material between the shoe sole and the footrest underside to form an intermediate glue layer for gluing the shoe sole to the footrest underside, so as to achieve the effects of saving material, manufacturing and labor costs.
  • the shoes of an automated process production 1 comprises a shoe-upper material 11, a shoe sole 12 and a plastic material 13.
  • the shoe-upper material 11 is a one-piece three-dimensional structure and includes a shoe-upper 111 and a footrest underside 112.
  • the shoe-upper 111 is coupled to the footrest underside 112 along an edge of the footrest underside 112 and provided for covering a portion of a wearer's foot.
  • the shoe sole 12 is installed at the footrest underside 112.
  • the plastic material 13 is coated onto the shoe-upper 111 and the footrest underside 112 and filled between the footrest underside 112 and the shoe sole 12, and the shoe sole 12 is glued to the footrest underside 112 by the plastic material 13.
  • the plastic material 13 forms at least one support member 131 attached onto the shoe-upper 111 and the footrest underside 112.
  • the shoe-upper material 11 is a one-piece three-dimensional braid, but the invention is not limited to the braid only, but any other equivalent material such as leather can be used instead. Since the shoe-upper material 11 is formed by a weaving method, and weaving threads are usually not closely woven, therefore the shoe-upper material 11 has a plurality of pores 113.
  • the plastic material 13 When the melted plastic material 13 is coated onto the shoe-upper 111 and the footrest underside 112 of the shoe-upper material 11, the plastic material 13 is covered onto the shoe-upper 111 and the footrest underside 112 of the shoe-upper material 11 and also permeated into the plurality of pores 113 of the shoe-upper material 11, After the plastic material 13 is cured gradually within a period of time the plastic material 13 permeated into the plurality of pores 113 is cured to connect and seal each pore 113, so that the plastic material 13 can be attached tightly onto the shoe-upper material 11.
  • the shoe-upper material 11 is a braid with insufficient supporting force to support its own weight and the shoe-upper material 11 is a three-dimensional form, so that when after the plastic material 13 is cured, the plastic material 13 has a specific hardness to become a three-dimensional structured support member 131 for supporting the shoe-upper material 11, and the framework of the shoe-upper material 11 is generally attached onto an external surface (including the shoe-upper 111 and the footrest underside 112) of the shoe-upper material 11 to provide a supporting force to the whole shoe-upper material 11 and support the shoe-upper material 11 in a three-dimensional form.
  • the support member 131 also has other functions, such as the adjustment of the mold according to the design requirements during the manufacture, so that when the plastic material 13 is injected to the shoe-upper material 11, the plastic material 13 forms a stylish form corresponding to the mold on the shoe-upper material 11, and the plastic material 13 has a specific shape on the shoe-upper material 11, and the color of the plastic material 13 is selected to match with the color of the shoe-upper 111 while completing the coloring operation.
  • the invention can save the manufacturing cost and time effectively.
  • the conventional shoemaking methods require attaching the stylish parts one by one onto the shoe-upper material 11, and some methods even require a sewing process to fix the parts.
  • the present invention injects the plastic material 13 directly to form the parts onto the shoe-upper material 11, not only achieving a better attachment of the parts with the shoe-upper material 11, but also saving the manpower and manufacturing time required for the attaching and sewing operations effectively.
  • shoe-upper material 11 cannot support itself before the manufacture, so that it is necessary to use a shoe shaped inner mold 14 installed inside the shoe-upper material 11 to provide a supporting force during the manufacture.
  • the detailed description of the shoemaking method of an automated process production is given below.
  • the shoemaking method of an automated process production of the invention comprises the following steps:
  • S12 Providing a shoe sole, installed at the footrest underside and disposed at a position corresponding to the footrest underside.
  • S 13 Coating a plastic material onto the shoe-upper and footrest underside 6 and filling the plastic material between the footrest underside and the shoe sole by a gluing step to glue the shoe sole to the footrest underside.
  • 514 Forming at least one support member attached onto the shoe-upper and the footrest underside by the plastic material to support the upper material.
  • the gluing step further comprises the following steps:
  • S132 Putting the shoe-upper material and the shoe sole in a shaping mold body having at least one preset mold cavity, and pressing the shoe-upper material by the shaping mold body, wherein the shaping mold body includes at least three movable shaping mold blocks having the at least one preset mold cavity.
  • this embodiment adopts three mold blocks for pressing both sides of the shoe-upper and the footrest underside respectively, but the quantity of mold blocks is not limited to three but it can be adjusted according to actual requirements. It is noteworthy to point out that the shoe sole is placed onto one of the mold blocks corresponding to the footrest underside.
  • S133 Injecting a plastic material into the at least one preset mold cavity of the shaping mold body by a plastic injection molding machine to coat the plastic material onto the shoe-upper and the footrest underside and fill the plastic material between the footrest underside and the shoe sole.
  • the shoemaking method of the invention further comprises the following steps:
  • the shoe-upper material and the shoe sole are placed into predetermined positions in the mold, and then an injection molding method is used to inject the melted plastic material into the mold and shape and cure the plastic material in the mold, while the plastic material is tightly fixed onto the shoe-upper material, and the shoe sole is also tightly fixed onto the plastic material of the footrest underside. Therefore, the manufacturing process can be simplified to facilitate the manufacture, and the plastic material can be used effectively to support the shoe-upper material and fix the shoe sole, while giving a decorative effect.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Description

    FIELD OF THE INVENTION
  • The present invention relates to shoes of an automated process production and a shoemaking method thereof, and more particularly to the shoes of an automated process production and the shoemaking method thereof in which coating a plastic material on a shoe-upper material and gluing a shoe sole to a footrest underside may be performed simultaneously.
    • BACKGROUND OF THE INVENTION
  • In the conventional shoemaking procedure, a glue or adhesive must be applied onto a shoe-upper material and a sole must before attaching them with one another, and a surface treatment of the sole is performed, so that the glue or adhesive can be coupled to the sole securely.
  • However, the use of the glue or adhesive and the surface treatment of the sole may cause environmental pollutions, and the gluing process generally relies on manpower for the alignment, and any poorly glued shoe-upper material and sole cannot be reworked or glued again, and thus causing a problem for controlling the yield rate. In addition, the labor cost of the manufacturing industry becomes increasingly higher, and the technical skill of the workers becomes increasingly lower. Therefore, the material, labor and manufacturing costs required in a production process become a big burden to the shoe industry.
  • At present, different conventional manufacturing processes fail to provide a good adhesive quality while reducing the manufacturing cost. Obviously, the yield rate and economic benefit related to shoemaking technical field require further improvements.
    US 2012/0255201 A1 discloses footwear with a seamless upper and methods for making the same. There, a sole is created by injecting resin between a mold and a lower side of the shoe upper. US 6,007,748 A discloses methods and apparatus particularly for molding laminated shoe soles directly onto the remainder of the shoe, by injecting polymeric material between a sole mold and a lower part of the shoe upper. US 2010/0154256 A1 reveals an article of footwear where the shoe upper is a unitary knit construction formed through a single flat knitting process. EP 0 787 577 A1 discloses a method for producing shoe soles by injection-molding by injecting thermoplastic materials around a lower part of the shoe upper.
    US 2004/0143995 A1 shows a shoe construction where a shoe sole is attached to the shoe upper by injecting a plastic material between a lower part of the shoe upper and a rubber outsole. US 2007/0180730 A1 discloses articles of footwear with a sole structure and an upper having lateral and medial side elements that are engaged and mechanically or bondedly joined with the sole structure. US 2011/0247236 A1 discloses footwear and method for manufacturing the same where polymeric material is injected or poured between an outsole and a midsole part of the shoe upper. U.S. patent 3,812,604 reveals a shoe upper which is joined to an outsole by injecting a liquid synthetic hardenable material between a lower part of the shoe upper and the outsole. US 2009/0071035 A1 discloses a footwear item with an upper and an outsole where the outsole is connected to the upper by injecting plastic material between the outsole and the lower part of the shoe upper.
    • SUMMARY OF THE INVENTION
  • In view of the aforementioned drawbacks of the prior art, it is a primary objective of the present invention to provide shoes of an automated process 2 production and a shoemaking method thereof and overcome the problems related to the complicated shoemaking process and the waste of materials, manufacturing time and labor.
  • To achieve the aforementioned objective, the present invention provides a shoe of an automated process production, comprising a shoe-upper material having an upper side and a lower side relative to the upper side, a shoe sole and a plastic material. The shoe-upper material is a one-piece three-dimensional structure and includes a shoe-upper and a footrest underside, and the shoe-upper is coupled to the footrest underside along an edge of the footrest underside. The shoe sole is installed at the footrest underside. The plastic material is coated onto the upper side and the lower side of the shoe-upper and onto the footrest underside and filled between footrest underside and the shoe sole, and the shoe sole is glued to the footrest underside by the plastic material, and the plastic material forms at least one three-dimensional structured support member attached onto the upper side and the lower side of the shoe-upper and onto the footrest underside to provide a supporting force to the whole shoe-upper material (11).
  • Preferably, the shoe-upper material has a plurality of pores.
  • Preferably, the plastic material is permeated into the plurality of pores of the shoe-upper material, when the plastic material is coated onto the shoe-upper and the footrest underside of the shoe-upper material.
  • Preferably, the shoe-upper material is a braid.
  • Preferably, the shoe-upper material is leather.
  • In addition, the present invention further provides a shoemaking method of an automated process production, comprising the steps of: providing a one-piece three-dimensional structured shoe-upper material, and the shoe-upper material including a shoe-upper having an upper side and a lower side relative to the upper side and a footrest underside, and the lower side of shoe-upper being coupled to an edge of the footrest underside along the footrest underside; providing a shoe sole, installed at the footrest underside; coating a plastic material onto the shoe-upper and the footrest underside and filling the plastic material between the footrest underside and the shoe sole by a gluing step to glue the shoe sole to the footrest underside; and forming at least one three-dimensional structured support member attached to the upper side and the lower side of the shoe-upper and the footrest underside by the plastic material to provide a supporting force to the whole shoe-upper material.
  • Preferably, the gluing step further comprises the steps of: setting the shoe-upper material onto a shoe shaped inner mold; putting the shoe-upper material and the shoe sole into a shaping mold body having at least one preset mold cavity, and pressing the shoe-upper material by the shaping mold body; injecting the plastic material into the at least one preset mold cavity of the shaping mold body by a plastic injection molding machine, such that the plastic material is coated onto the upper side and a lower side of the shoe-upper and the footrest underside and filled between the footrest underside and the shoe sole; and removing the shoe shaped inner mold and the shaping mold body 3 by a demolding step.
  • Preferably, the shoemaking method further comprises the following steps before the demolding step takes place: permeating the plastic material into a plurality of pores of the shoe-upper material, such that the plastic material is coupled to the shoe-upper material; and waiting till the plastic material is cured and shaped, such that the plastic material forms an intermediate glue layer between the footrest underside and the shoe sole to glue the shoe sole to the footrest underside.
  • Preferably, the shoe shaped inner mold is a movably stretchable shoe last.
  • Preferably, the shaping mold body includes at least three shaping mold blocks having the at least one preset mold cavity.
  • In summation, the shoes of an automated process production and a shoemaking method thereof in accordance with the present invention use a plastic injection molding machine to inject the plastic material into the mold and coat the plastic material onto the shoe-upper material and fill the plastic material between the shoe sole and the footrest underside to form an intermediate glue layer for gluing the shoe sole to the footrest underside, so as to achieve the effects of saving material, manufacturing and labor costs.
    • BRIEF DESCRIPTION OF THE DRAWINGS
    • FIG. 1 is an exploded view of a shoe of an automated process production of the present invention;
    • FIG. 2 is a schematic view of a shoe of an automated process production of the present invention;
    • FIG. 3 is a cross-sectional view of a shoe of an automated process production of the present invention;
    • FIG. 4 is a flow chart of a shoemaking method of shoes of an automated process production in accordance with the present invention; and [0022] FIG. 5 is a flow chart of a gluing step of a shoemaking method of shoes of an automated process production in accordance with the present invention.
    DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • The technical characteristics, contents, advantages and effects of the present invention will be apparent with the detailed description of a preferred embodiment accompanied with related drawings as follows. The drawings are provided for the illustration, and same numerals are used to represent respective elements in the preferred embodiments. It is intended that the embodiments and drawings disclosed 4 herein are to be considered illustrative rather than restrictive. Same numerals are used for representing same respective elements in the drawings.
  • With reference to FIGS. 1 to 3 for an exploded view, a schematic view and a cross-sectional view of shoes of an automated process production of the present invention respectively, the shoes of an automated process production 1 comprises a shoe-upper material 11, a shoe sole 12 and a plastic material 13. The shoe-upper material 11 is a one-piece three-dimensional structure and includes a shoe-upper 111 and a footrest underside 112. The shoe-upper 111 is coupled to the footrest underside 112 along an edge of the footrest underside 112 and provided for covering a portion of a wearer's foot. The shoe sole 12 is installed at the footrest underside 112. The plastic material 13 is coated onto the shoe-upper 111 and the footrest underside 112 and filled between the footrest underside 112 and the shoe sole 12, and the shoe sole 12 is glued to the footrest underside 112 by the plastic material 13.
  • The plastic material 13 forms at least one support member 131 attached onto the shoe-upper 111 and the footrest underside 112.
  • In addition, the shoe-upper material 11 is a one-piece three-dimensional braid, but the invention is not limited to the braid only, but any other equivalent material such as leather can be used instead. Since the shoe-upper material 11 is formed by a weaving method, and weaving threads are usually not closely woven, therefore the shoe-upper material 11 has a plurality of pores 113.
  • When the melted plastic material 13 is coated onto the shoe-upper 111 and the footrest underside 112 of the shoe-upper material 11, the plastic material 13 is covered onto the shoe-upper 111 and the footrest underside 112 of the shoe-upper material 11 and also permeated into the plurality of pores 113 of the shoe-upper material 11, After the plastic material 13 is cured gradually within a period of time the plastic material 13 permeated into the plurality of pores 113 is cured to connect and seal each pore 113, so that the plastic material 13 can be attached tightly onto the shoe-upper material 11.
  • However, the shoe-upper material 11 is a braid with insufficient supporting force to support its own weight and the shoe-upper material 11 is a three-dimensional form, so that when after the plastic material 13 is cured, the plastic material 13 has a specific hardness to become a three-dimensional structured support member 131 for supporting the shoe-upper material 11, and the framework of the shoe-upper material 11 is generally attached onto an external surface (including the shoe-upper 111 and the footrest underside 112) of the shoe-upper material 11 to provide a supporting force to the whole shoe-upper material 11 and support the shoe-upper material 11 in a three-dimensional form.
  • Beside providing the supporting force to the shoe-upper material 11, the support member 131 also has other functions, such as the adjustment of the mold according to the design requirements during the manufacture, so that when the plastic material 13 is injected to the shoe-upper material 11, the plastic material 13 forms a stylish form corresponding to the mold on the shoe-upper material 11, and the plastic material 13 has a specific shape on the shoe-upper material 11, and the color of the plastic material 13 is selected to match with the color of the shoe-upper 111 while completing the coloring operation. The invention can save the manufacturing cost and time effectively. For example, the conventional shoemaking methods require attaching the stylish parts one by one onto the shoe-upper material 11, and some methods even require a sewing process to fix the parts. Now, the present invention injects the plastic material 13 directly to form the parts onto the shoe-upper material 11, not only achieving a better attachment of the parts with the shoe-upper material 11, but also saving the manpower and manufacturing time required for the attaching and sewing operations effectively.
  • It is noteworthy that the shoe-upper material 11 cannot support itself before the manufacture, so that it is necessary to use a shoe shaped inner mold 14 installed inside the shoe-upper material 11 to provide a supporting force during the manufacture. The detailed description of the shoemaking method of an automated process production is given below.
  • Even though the concept of shoemaking method of an automated process production of the present invention has been described in the process of describing the shoes of an automated process production of the present invention, the following flow charts are provided to give a more detailed description of the shoemaking method.
  • With reference to FIGS. 4 and 5 for the flow charts of a shoemaking method of an automated process production and a gluing step of the shoemaking method of an automated process production in accordance with the present invention respectively, the shoemaking method of an automated process production of the invention comprises the following steps:
    • S 11: Providing a one-piece three-dimensional structured shoe-upper material, wherein the shoe-upper material includes a shoe-upper and a footrest underside, and the shoe-upper is coupled to the footrest underside along an edge of the footrest underside.
  • S12: Providing a shoe sole, installed at the footrest underside and disposed at a position corresponding to the footrest underside.
  • S 13: Coating a plastic material onto the shoe-upper and footrest underside 6 and filling the plastic material between the footrest underside and the shoe sole by a gluing step to glue the shoe sole to the footrest underside.
  • 514: Forming at least one support member attached onto the shoe-upper and the footrest underside by the plastic material to support the upper material.
  • In addition, the gluing step further comprises the following steps:
    • S 131: Setting the shoe-upper material onto a shoe shaped inner mold, wherein the shoe shaped inner mold can be a movably stretchable shoe last, and adjust the size of the shoe-upper material to fit different sizes of shoes.
  • S132: Putting the shoe-upper material and the shoe sole in a shaping mold body having at least one preset mold cavity, and pressing the shoe-upper material by the shaping mold body, wherein the shaping mold body includes at least three movable shaping mold blocks having the at least one preset mold cavity. For example, this embodiment adopts three mold blocks for pressing both sides of the shoe-upper and the footrest underside respectively, but the quantity of mold blocks is not limited to three but it can be adjusted according to actual requirements. It is noteworthy to point out that the shoe sole is placed onto one of the mold blocks corresponding to the footrest underside.
  • S133: Injecting a plastic material into the at least one preset mold cavity of the shaping mold body by a plastic injection molding machine to coat the plastic material onto the shoe-upper and the footrest underside and fill the plastic material between the footrest underside and the shoe sole.
  • S134: Removing the shoe shaped inner mold and the shaping mold body by a demolding step.
  • Before the demolding step takes place, the shoemaking method of the invention further comprises the following steps:
    • S1331: Permeating the plastic material into the plurality of pores of the shoe-upper material to connect the plastic material to the shoe-upper material.
  • S1332: Waiting till the plastic material is cured and shaped, the plastic material forms an intermediate glue layer between the footrest underside and the shoe sole to glue the shoe sole to the footrest underside.
  • For short, the shoe-upper material and the shoe sole are placed into predetermined positions in the mold, and then an injection molding method is used to inject the melted plastic material into the mold and shape and cure the plastic material in the mold, while the plastic material is tightly fixed onto the shoe-upper material, and the shoe sole is also tightly fixed onto the plastic material of the footrest underside. Therefore, the manufacturing process can be simplified to facilitate the manufacture, and the plastic material can be used effectively to support the shoe-upper material and fix the shoe sole, while giving a decorative effect.
  • The detailed description and implementation of the shoemaking method of an automated process production of the present invention have been described previously in the section of the shoes of an automated process production of the present invention, and thus will not be repeated.

Claims (6)

  1. A shoe of an automated process production (1), comprising:
    a shoe-upper material (11), being one-piece three-dimensional structure, and including a shoe-upper (111) having an upper side and a lower side relative to the upper side and a footrest underside (112), and the lower side of the shoe-upper (111) being coupled to the footrest underside (112) along an edge of the footrest underside (112);
    a shoe sole (12), installed at the footrest underside (112); and
    a plastic material (13) having a specific hardness, coated onto the upper side and the lower side of the shoe-upper (111) and the footrest underside (112) and filled between the footrest underside (112) and the shoe sole (12) such that the shoe sole (12) is glued to the footrest underside (112) by the plastic material (13), and the plastic material (13) forming at least one three-dimensional structured support member (131) is attached onto the upper side and the lower side of the shoe-upper (111) and the footrest underside (112) to provide a supporting force to the whole shoe-upper material (11);
    wherein the shoe-upper material (11) has a plurality of pores (113), and the plastic material (13) is permeated into the plurality of pores (113) of the shoe-upper material (11).
  2. The shoe of an automated process production (1) according to claim 1, wherein the shoe-upper material (11) is a braid.
  3. The shoe of an automated process production (1) according to claim 1, wherein the shoe-upper material (11) is leather.
  4. A shoemaking method of an automated process production, comprising the steps of:
    providing a one-piece three-dimensional structured shoe-upper material (11) having a plurality of pores (113), and the shoe-upper material (11) including a shoe-upper (111) having an upper side and a lower side relative to the upper side and a footrest underside (112), and the lower side of the shoe-upper (111) being coupled to an edge of the footrest underside (112) along the footrest underside (112);
    providing a shoe sole (12), installed at the footrest underside (112);
    setting the shoe-upper material (11) onto a shoe shaped inner mold (14);
    putting the shoe-upper material (11) and the shoe sole (12) into a shaping mold body having at least one preset mold cavity, and pressing the shoe-upper material (11) by the shaping mold body; gluing the sole to the footrest underside with the steps A,B,C,D;
    A- injecting a plastic material (13) into the at least one preset mold cavity of the shaping mold body by a plastic injection molding machine such that the plastic material (13) is coated onto the upper side and the lower side of the shoe-upper (111) and the footrest underside (112) and filling between the footrest underside (112) and the shoe sole (12) simultaneously;
    B- permeating the plastic material (13) into a plurality of pores (113) of the shoe-upper material (11) such that the plastic material (13) is coupled to the shoe-upper material (11);
    C- waiting till the plastic material (13) is cured and shaped such that the plastic material (13) forms an intermediate glue layer between the footrest underside (112) and the shoe sole (12) to glue the shoe sole (12) to the footrest underside (112);
    D- removing the shoe shaped inner mold (14) and the shaping mold body by a demolding step; and
    forming at least one three-dimensional structured support member (131) attached to the upper side and the lower side of the shoe-upper (111) by the plastic material (3) having a specific hardness to provide a supporting force to the whole shoe-upper material (11).
  5. The shoemaking method of an automated process production according to claim 4, wherein the shoe shaped inner mold (14) is a movably stretchable shoe last.
  6. The shoemaking method of an automated process production according to claim 4, wherein the shaping mold body includes at least three movable shaping mold blocks having the at least one preset mold cavity.
EP13169628.8A 2013-01-04 2013-05-29 Shoes of automated process production and shoemaking method thereof Active EP2752125B1 (en)

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CN103908037A (en) 2014-07-09
JP5818376B2 (en) 2015-11-18
JP2014131865A (en) 2014-07-17
US20140189964A1 (en) 2014-07-10
KR20140089282A (en) 2014-07-14
EP2752125A1 (en) 2014-07-09
DK2752125T3 (en) 2017-07-03
TW201427615A (en) 2014-07-16

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